Asian stocks gained led by banks and technology companies after China Merchants Bank rose as it expected higher profits and Trend Micro (anti-virus software developer) advanced.Japanese benchmark index Nikkei gained 122.15 points,or 0.92%, to end at 13,360.04. Hong Kong`s index Hang Seng gained 489.24 points, or 2.28%, to settle at 21,913.06. China`s Shanghai Composite rose 122.50 points or 4.59% to fclose at 2,792.397.Taiwan`s Taiex index went up 112.70 points, or 1.56%, to settle at 7,341.11